Abstract:Through 5 years observation and investigation, the suitable range, plant recovery, sand dune moving distance, investment and production value of ten moving sand plant block models were studied. It is show that precipitation can sustain plant suvival, and plant sand block can be used for harness moving sand. All the ten models are suitable models except squared spread straw-planting Caragana microphylla model and squared sowing straw-sowing Hedysarum mongolicum and Caragana microphylla model are not suitable to upper sand. Different model has different plant recovery speed, sand float distance , investment and production value. From the point of harness effectiveness, Hedysarum mongolicum plant sand block model and Hedysarum mongolicum-Salix flavida plant sand block model arethe best, Salix flavida plant sand block model and Hedysarum-packing model are the second, Salix flavida-packing model, squared straw-planting Hedysarum mongolicum model and squared straw-planting Hedysarum mongolicum and Caragana microphylla model are the third, squared spread straw-planting Caragana microphylla model, squared sowing straw-sowing Hedysarum mongolicum and Caragana microphylla model and squared straw-planting Salix flavida model are the worst. Study results provide a scientific way for harness floating sand.